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Hail in Summit County, Utah
13 hail events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Hail.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
Summit County, Utah, has 13 hail events in the NCEI record since 1950, with at least one in 10 different years.
July is the busiest month, with 4 of the recorded events. The last 20 years account for 7 events against 6 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 2% of the 638 hail events recorded in Utah; its 0.7 per 100 square miles compares with 0.8 statewide.
0 of the hail reports with a recorded size were golf-ball size (1.75 inches) or larger; the largest recorded stone was 1.50 inches (ping-pong ball size).
Compared with Utah
| Measure | Summit County | Utah | US |
|---|---|---|---|
| Hail events since 1950 | 13 | 638 | 424,356 |
| Per 100 square miles | 0.7 | 0.8 | 12.0 |
| Per 10,000 residents | 3.0 | 1.9 | 12.8 |
| Deaths recorded | 0 | 0 | 29 |
| Busiest month | July | August | May |
By year
Seasonality
0Feb
0Mar
0Apr
0May
2Jun
2Jul
4Aug
2Sep
3Oct
0Nov
0Dec
0
Magnitude distribution
NWS hail-size descriptors
- under 1 in
- pea to quarter
- 1–1.74 in
- quarter to golf ball
- 1.75–2.74 in
- golf ball to baseball
- 2.75–3.99 in
- baseball to softball
- 4 in and larger
- softball and larger
Hail size in inches as recorded by NCEI; events without a size are not binned.
Recorded events
All 13 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 25 Jun 2026 | Hail | 1.00 in | — | — | — | — | County |
| 17 May 2021 | Hail | 0.75 in | — | — | — | — | County |
| 11 Aug 2016 | Hail | 1.00 in | — | — | — | — | County |
| 18 Jul 2015 | Hail | 0.88 in | — | — | — | — | County |
| 5 Sep 2007 | Hail | 1.00 in | — | — | — | — | County |
| 5 Sep 2007 | Hail | 0.75 in | — | — | — | — | County |
| 25 Jul 2007 | Hail | 1.00 in | — | — | — | — | County |
| 26 Aug 2006 | Hail | 0.88 in | — | — | — | — | County |
| 21 May 1998 | Hail | 0.75 in | — | $200 | — | — | County |
| 21 Jun 1996 | Hail | 1.00 in | — | — | — | — | County |
| 25 Sep 1990 | Hail | 1.50 in | — | — | — | — | County |
| 21 Jul 1987 | Hail | 1.50 in | — | — | — | — | County |
| 21 Jul 1987 | Hail | 1.00 in | — | — | — | — | County |
Questions and answers
How many hail events has Summit County had?
13 events in the NCEI Storm Events record between 1950 and 2026. Reporting of hail became far more complete after 1996, so early decades undercount.
When was the last recorded hail event in Summit County?
25 Jun 2026 (Hail, 1.00 in). Records reach NCEI about 120 days after the month ends.
What was the most damaging hail event recorded in Summit County?
The hail of 21 May 1998, with property damage estimated by NCEI at $0 and crop damage at $200.
How does Summit County compare with Utah for hail?
0.7 events per 100 square miles against 0.8 statewide; the county holds 13 of the state's 638 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Hail hub and the county page.